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Finding the Fourth Proportional to 15,266.52, 21,063.96 and 8,977.68

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Solution

The fourth proportional to 15,266.52, 21,063.96 and 8,977.68 is: 12,386.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,266.52 : 21,063.96 = 8,977.68 : x
  2. Step 2: Convert to fraction form
    15,266.52/21,063.96 = 8,977.68/x
  3. Step 3: Cross multiply
    15,266.52x = 21,063.96 × 8,977.68
  4. Step 4: Simplify right side
    15,266.52x = 189,105,492.41
  5. Step 5: Solve for x
    x = 189,105,492.41/15,266.52
  6. Step 6: Final answer
    x = 12,386.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.